DL 637 then AS 2239 at Seattle
Chicago O'Hare → Seattle → Portland (Oregon)
Timetable, Seattle time
20:38DL 637 from Chicago O'Hare at the gate
19:54AS 2239 to Portland (Oregon) leaves the gate
23 h 16 apart on the timetable, overnight
AS 2239 leaves 23 h 16 after DL 637 arrives on the timetable: more than half a day, so not a connection we count.